Note 565 — Chapter III · ASBESTOS.

Tournefort’s Travels, vol. i. p. 129. Bruckmann, Hist. Nat. Lapidis. Brunswic. 1727. p. 31, 32. This author says the asbestos was put into warm water, and there rubbed and turned about. An earth separates from it, which makes the water as white as milk. This is repeated five or six times. The fibres, thus purified, are spread out to dry.